Advertisement

Journal of Materials Science

, Volume 29, Issue 10, pp 2678–2682 | Cite as

Effects of sintering temperature on the superconducting and microstructural properties of Bi1.7Pb0.4Sr1.6Ca2.4Cu3.6OY/Ag2O composites

  • Y. D. Chiu
  • T. S. Lei
  • C. H. Kao
Papers

Abstract

The effects of sintering temperature on the superconducting and microstructure properties of Bi1.7Pb0.4Sr1.6Ca2.4Cu3.6OY (BPSCCO)/Ag2O (0–50 wt%) superconductors were investigated. Based on the differential thermal analysis data, it was found that the addition of Ag2O to the BPSCCO system lowered the partial melting temperature (peritectic point), thereby promoting extra liquid formation in this system and affecting the stability of 2223 high-Tc phase of these composites. For example, the Tc (zero) of the BPSCCO/Ag2O (10 wt%) composite which was sintered at 843 °C in air was depressed by as much as 52 K. However, the addition of Ag2O (10–50 wt%) in the BPSCCO samples resulted in no significant effect on Tc when samples were treated under a lower sintering temperature (827 °C) in air. The correlations of superconducting properties with microstructures of these materials are discussed.

Keywords

Polymer Microstructure Analysis Data Thermal Analysis Melting Temperature 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    M. K. Wu, J. R. Ashburn, C. J. Torng, P. H. Hor, R. L. Meng, L. Gao, Z. J. Huang, Y. R. Wang and C. W. Chu, Phys. Rev. Lett. 58 (1987) 908.CrossRefGoogle Scholar
  2. 2.
    J. W. Ekin, H. I. Braginski, A. J. Pansokn, M. A. Janoikok, D. W. Capone II, J. Zaluzec, B. Flandermeyer, O. F. Lima, M. Hong, J. Kwo and S. H. Liou, J. Appl. Phys. 62 (1987) 4821.CrossRefGoogle Scholar
  3. 3.
    R. F. Cook, T. M. Shaw and P. R. Duncombe, Adv. Ceram. Mater. 2 (1987) 606.CrossRefGoogle Scholar
  4. 4.
    R. F. Cook, T. R. Dinger and D. R. Clarke, Appl. Phys. Lett. 51 (1987) 454.CrossRefGoogle Scholar
  5. 5.
    S. J. Ochiai, K. J. Hayashi and K. Osamura, J. Mater. Sci. 25 (1990) 3467.CrossRefGoogle Scholar
  6. 6.
    Y. Saito, Y. Noji, A. Endo, N. Higuchi, K. Fujimoto, T. Oikawa, A. Hattori and K. Furuse, Jpn J. Appl. Phys. 26 (1987) L832.CrossRefGoogle Scholar
  7. 7.
    Y. H. Lao, Y. D. Yao. L. Y. Jang, F. Xu, H. Krol, L. W. Song and C. J. Sher, J. Appl. Phys. 67 (1990) 353.CrossRefGoogle Scholar
  8. 8.
    J. H. Choy and D. Y. Jung, Mater. Lett. 10 (1990) 121.CrossRefGoogle Scholar
  9. 9.
    T. Nishio, Y. Itoh, F. Ogasawara, M. Suganuma, Y. Yamada and U. Mizurani, J. Mater. Sci. 24 (1989) 3228.CrossRefGoogle Scholar
  10. 10.
    J. P. Singh, H. J. Leu, R. B. Poeppel, E. V. Voorhees, G. T. Goudey, K. Winsley and D. Shi, J. Appl. Phys. 66 (1989) 3154.CrossRefGoogle Scholar
  11. 11.
    G. Kozlowski, I. Maartense, R. Spyler, R. Spyker, R. Keese and C. E. Oberly, Phys. C 173 (1991) 195.CrossRefGoogle Scholar
  12. 12.
    Usayab De, S. Nararauan and E. W. Seibt, ibid. 183 (1991) 83.CrossRefGoogle Scholar
  13. 13.
    P. N. Peters, R. C. Siskk, E. W. Urban, C. Y. Huang and M. K. Wu, Appl. Phys. Lett. 52 (1988) 2066.CrossRefGoogle Scholar
  14. 14.
    K. H. Song, H. K. Liu, S. X. Dou, C. C. Sorrell, N. Savvides and G. J. Bowden, J. Mater. Sci. Mater. Electron, 1 (1990) 30.CrossRefGoogle Scholar
  15. 15.
    A. K. Sarkar, I. Maartense and T. L. Peterson, J. Mater. Res. 7 (1992) 1672.CrossRefGoogle Scholar
  16. 16.
    S. Jin, R. C. Sherwood, T. H. Tiefel. G. W. Kammlott, R. A. Fastnacht, M. E. Davis and S. M. Zahurak, Appl. Phys. Lett. 52 (1988) 1628.CrossRefGoogle Scholar
  17. 17.
    N. Savvides, A. Katsaros and S. X. Dou, Phys. C 179 (1991) 361.CrossRefGoogle Scholar
  18. 18.
    Y. D. Chiu, C. H. Kao, Y. S. Shiue, S. R. Sheen, T. S. Lei and M. K. Wu, in “Proceedings of Symposium on Beijing International Conference on High Tc Superconductivity”, 25 May 1992, Beijing, China, in press.Google Scholar
  19. 19.
    D. H. Chen, C. Y. Shei, S. R. Sheen and C. T. Chang, Jpn J. Appl. Phys. 30 (1991) 1198.CrossRefGoogle Scholar
  20. 20.
    K. Jain, D. K. Suri, K. C. Nagpal, S. U. M. Rao and B. K. Das, ibid. 29 (1990) L576.CrossRefGoogle Scholar

Copyright information

© Chapman & Hall 1994

Authors and Affiliations

  • Y. D. Chiu
    • 1
  • T. S. Lei
    • 1
  • C. H. Kao
    • 2
  1. 1.Department of Mechanical EngineeringNational Taiwan Institute of TechnologyTaipeiTaiwan
  2. 2.Materials Science CenterNational Tsing Hua UniversityHsinchuTaiwan

Personalised recommendations